if __name__ == '__main__':
    original_list = [1, 2, 3, [1, 2, 3]]

    shallow_copy_list = original_list[:]
    # shallow_copy_list = original_list.copy()

    shallow_copy_list[0] = 0
    shallow_copy_list[3][0] = 0

    # 如果原始列表中的对象发生改变，则是浅拷贝
    print(f'original list: {original_list}')
    print(f'shallow copy list: {shallow_copy_list}')
